Received:
3
June
1997
Accepted:
2
March
1998
Published online: 15 June 1998

Abstract

Formation conditions, optical nonlinear properties and applications of
F2− color centers
in LiF monocrystals are investigated. The efficiency of F2− centers generation depending
of irradiation conditions and content of OH− impurities of the LiF monocrystal are also
presented. Thermal stability of the centers generated by electron irradiation was studied.
It was measured the variation of absorption factor of the
LiF: F2− crystal in the −40 °C to
60 °C temperature range.
The LiF: F2− crystals obtained by an efficient method of irradiation with electrons
generated by a linear accelerator were employed in
Q-switching a Nd: YAG laser cavity
with output energies of 18 mJ and fluctuations less
than 5% in the −40 °C to 60 °C
temperature range.

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